Sulfur dioxide

New report outlines health impact of air pollution from MidAmerican Energy coal plants in Siouxland

Retrieved on: 
星期二, 五月 7, 2024

DES MOINES, Iowa, May 7, 2024 /PRNewswire/ -- A new report from the Iowa Environmental Council, released on World Asthma Day, examines the relationship between pollution from coal plants and lung disease in Woodbury County.

Key Points: 
  • Written in partnership with public health experts from organizations including the American Lung Association, Physicians for Social Responsibility, and the Winnebago Tribe of Nebraska's Winnebago Comprehensive Healthcare System, Coal in Siouxland: MidAmerican Energy's Legacy of Air Pollution and Health Impacts highlights how two coal-fired power plants in northwest Iowa operated by MidAmerican Energy harm the health of Siouxland, the multi-state, three county region surrounding Sioux City, IA.
  • "Pollution from coal plants makes our communities sicker and drives worse health outcomes, especially for communities of color and Iowans of low-income."
  • "Emissions from coal plants pose a serious threat to public health in Iowa," says John Rachow, MD, PhD, Past President of Physicians for Social Responsibility.
  • "The data in this report raise troubling questions for us and should be concerning to all Iowans and to MidAmerican Energy," says Smith.

BAE Systems selected to build atmospheric composition instrument for NOAA's GeoXO constellation

Retrieved on: 
星期三, 五月 1, 2024

BROOMFIELD, Colo., May 1, 2024 /PRNewswire/ -- BAE Systems (LON: BA) was selected by NASA to develop the Atmospheric Composition instrument (ACX) that will fly on the National Oceanic and Atmospheric Administration's (NOAA) Geostationary Extended Observations (GeoXO) satellite constellation.

Key Points: 
  • BROOMFIELD, Colo., May 1, 2024 /PRNewswire/ -- BAE Systems (LON: BA) was selected by NASA to develop the Atmospheric Composition instrument (ACX) that will fly on the National Oceanic and Atmospheric Administration's (NOAA) Geostationary Extended Observations (GeoXO) satellite constellation.
  • However, GeoXO will also provide novel, high-priority capabilities such as atmospheric composition, infrared sounding and ocean color observations to enhance forecasts and science benefits.
  • The ACX instrument builds on BAE Systems experience developing innovative atmospheric monitoring capabilities.
  • In addition to ACX, BAE Systems was also selected to build the GeoXO Sounder (GXS) instrument, which will measure atmospheric moisture, winds, and temperature to enhance weather prediction models and short-term severe weather forecasting among other applications.

RTX's Pratt & Whitney collaborates with FAA to study non-CO2 emissions under FAA ASCENT program

Retrieved on: 
星期四, 三月 21, 2024

EAST HARTFORD, Conn., March 21, 2024 /PRNewswire/ -- Pratt & Whitney, an RTX (NYSE: RTX) business and the Federal Aviation Administration (FAA) will work together with Missouri University of Science and Technology (Missouri S&T), Aerodyne Research, Inc., and the Environmental Protection Agency (EPA) to study non- CO2 aviation emissions, to help understand and reduce the environmental impact of those emissions. As part of the FAA's ASCENT program, the project will measure emissions from a Pratt & Whitney GTF™ engine combustor rig test stand using conventional Jet A and 100% sustainable aviation fuel (SAF).

Key Points: 
  • As part of the FAA's ASCENT program, the project will measure emissions from a Pratt & Whitney GTF™ engine combustor rig test stand using conventional Jet A and 100% sustainable aviation fuel (SAF).
  • "As the aviation industry targets a goal of net-zero CO2 emissions by 2050, we continue to pay close attention to addressing the environmental impact of other emissions, including cruise non-volatile particulate matter and NOx," said Sean Bradshaw, senior technical fellow of sustainable propulsion at Pratt & Whitney.
  • The rig tests will take place at Pratt & Whitney's facility in Middletown, Conn., using an advanced Rich-Quench-Lean (RQL) combustor.
  • Pratt & Whitney, the FAA, Missouri S&T, Aerodyne Research, and the EPA will collaborate on test design, execution, and emissions data analysis.

Geoengineering may slow Greenland ice sheet loss

Retrieved on: 
星期二, 一月 30, 2024

SAPPORO, Japan, Jan. 30, 2024 /PRNewswire/ -- One of the many effects of global warming is sea-level rise due to the melting and retreat of the Earth's ice sheets and glaciers as well as other sources. As the sea level rises, large areas of densely populated coastal land could ultimately become uninhabitable without extensive coastal modification. In order to stave off this possibility, carbon emissions need to reach net negative, a state that is hard to achieve under current circumstances.

Key Points: 
  • Hokkaido University researchers and colleagues show that stratospheric aerosol injection has the potential to reduce ice sheet loss due to climate change.
  • The simulations showed that SAI of sulfur dioxide would have a clear protective effect on the Greenland Ice Sheet.
  • Under RCP8.5, there would be ice loss equivalent to approximately 90 mm sea-level rise; under RCP4.5, ice loss would be approximately 60.6 mm sea-level rise; but under GeoMIP G4, ice loss would be limited to approximately just 37.6 mm sea-level rise.
  • "While this study shows that SAI could contribute to the protection of the Greenland Ice Sheet, and hence, potentially, all other ice cover on Earth, geoengineering is a highly contentious topic," Greve concludes.

Geoengineering may slow Greenland ice sheet loss

Retrieved on: 
星期二, 一月 30, 2024

SAPPORO, Japan, Jan. 30, 2024 /PRNewswire/ -- One of the many effects of global warming is sea-level rise due to the melting and retreat of the Earth's ice sheets and glaciers as well as other sources. As the sea level rises, large areas of densely populated coastal land could ultimately become uninhabitable without extensive coastal modification. In order to stave off this possibility, carbon emissions need to reach net negative, a state that is hard to achieve under current circumstances.

Key Points: 
  • Hokkaido University researchers and colleagues show that stratospheric aerosol injection has the potential to reduce ice sheet loss due to climate change.
  • The simulations showed that SAI of sulfur dioxide would have a clear protective effect on the Greenland Ice Sheet.
  • Under RCP8.5, there would be ice loss equivalent to approximately 90 mm sea-level rise; under RCP4.5, ice loss would be approximately 60.6 mm sea-level rise; but under GeoMIP G4, ice loss would be limited to approximately just 37.6 mm sea-level rise.
  • "While this study shows that SAI could contribute to the protection of the Greenland Ice Sheet, and hence, potentially, all other ice cover on Earth, geoengineering is a highly contentious topic," Greve concludes.

Stronghold Announces Third Quarter 2023 Operating and Financial Results and Launches Carbon Capture Initiative

Retrieved on: 
星期二, 十一月 14, 2023

Stronghold and third-party engineering, design, and construction partners have developed direct air capture (“DAC”) technology to utilize the beneficial use ash to capture CO2.

Key Points: 
  • Stronghold and third-party engineering, design, and construction partners have developed direct air capture (“DAC”) technology to utilize the beneficial use ash to capture CO2.
  • Network hash rate grew ~9% sequentially from the second quarter of 2023 to the third quarter 2023.
  • On December 12, 2023, Stronghold will host an analyst and investor day in New York, NY to discuss the carbon capture initiative and other items.
  • To access the call by phone, please use the following link Stronghold Digital Mining Third Quarter 2023 Earnings Call .

Constellation Remains No. 1 Producer of Carbon-Free Energy, New Report Confirms

Retrieved on: 
星期三, 十一月 15, 2023

With more than 23,000 megawatts of clean generating capacity, Constellation’s fleet of nuclear, solar, wind and hydro plants produce about 10% of the nation’s carbon-free energy.

Key Points: 
  • With more than 23,000 megawatts of clean generating capacity, Constellation’s fleet of nuclear, solar, wind and hydro plants produce about 10% of the nation’s carbon-free energy.
  • Per the report, zero-carbon resources were the leading source of power generation in the United States in 2022, providing approximately 41% of the nation’s electricity.
  • This year, Constellation announced plans to invest $800 million in new equipment to increase the capacity of its Braidwood and Byron nuclear plants in Illinois.
  • Learn more about Constellation’s efforts to accelerate the transition to a carbon-free future, mitigate the climate crisis and support energy equity and environmental justice in our 2023 Sustainability Report .

POWERCHINA Completes Construction and Achieves Grid Connection of Southeast Asia's Largest Floating Photovoltaic Project, Generating Stable Electricity for Indonesian Residents

Retrieved on: 
星期三, 十二月 13, 2023

Other clean energy sources, including hydropower and thermal energy, are currently in the initial stages of development in the country.

Key Points: 
  • Other clean energy sources, including hydropower and thermal energy, are currently in the initial stages of development in the country.
  • POWERCHINA employed its cutting-edge technology and world-class quality construction techniques to overcome the challenging requirements of the Cirata floating photovoltaic power generation project.
  • The floating photovoltaic project that realizes grid-connected power generation not only fulfills the country's dream of using new energy to generate electricity but is also the largest floating photovoltaic project in Southeast Asia.
  • While relieving the power shortage in West Java Province, it will also contribute to the cleanliness of Indonesia and Southeast Asia.

Key pumped-storage power station in East China Grid has met the criteria for power on and operation

Retrieved on: 
星期五, 十二月 1, 2023

Jiangsu Jurong Pumped-Storage Power Station was constructed in March 2017 with a total investment of over 9.6 billion yuan.

Key Points: 
  • Jiangsu Jurong Pumped-Storage Power Station was constructed in March 2017 with a total investment of over 9.6 billion yuan.
  • It is an important measure for the State Grid Corporation of China to actively respond to the national strategy of deepening supply-side structural reform and development.
  • It plays a significant role in promoting the construction of ultra-high voltage power grid, serving clean energy and economic and social development.
  • Since 2019, the State Grid Corporation of China has built a 500 kV transmission line project to meet the power transmission needs of the pumped-storage power station.

Shougang Advances ESG Initiatives, Bolstering Its Sustainable Steel Production

Retrieved on: 
星期四, 十一月 23, 2023

The company boasts an annual production capacity of 21.7 million metrics tons (MT) of premium grade sheet metal.

Key Points: 
  • The company boasts an annual production capacity of 21.7 million metrics tons (MT) of premium grade sheet metal.
  • Shougang continues its focus on the development of three main products: electrical steel, automotive sheet metal, and tinplate.
  • Electrical steel production for the same period stood at 1.25 million tons, up by 18% year on year.
  • As a standout in the Chinese steel sector, Shougang has garnered international attention by becoming the first steel firm globally to champion ultra-low emission processes across all operations.